Each of the five liquid kerosene (RP-1) and liquid oxygen (LOX) fueled F-1 engines were capable of delivering 1.5 million pounds of takeoff thrust, for a combined thrust of 7.5 million pounds during the boost phase. (Jason Perlow)

Five J-2 engines, with approximately 225,000 pounds of thrust each, were on the second stage of the Saturn V. A single J-2, with restart capability was on the S-IVB stage for trans lunar injection (TLI). Liquid Hydrogen was used as a fuel for its improved Specific Impulse (Jason Perlow)